I'm working out the best way to get the Lucas fog lights correctly fitted. Turns out I actually have the mounting pedestals, but one of them is filled with epoxy. The mounting bolts look broken and I don't see an obvious way to swap in fresh ones. Reassembling the wiring is definitely something I can handle.

Would love to hear how you'd approach this, any ideas are welcome. The grille is also an issue, but let's start with a look at the lights and pedestals.

Obviously the grille and surround are non-GT/CS replacement parts. From what I have seen, the correct grille has a large hole for each fog light and a vertical bracket lined up on that hole. That's all missing, along with the holes in the surround.

Should I get a 1967 grille, cut the holes, and paint it the correct color? I would still need the brackets that go behind the grille, I'm not sure what they are called or a part number.

Then wiring it up - I don't see an obvious point to connect the leads but maybe I'm missing something.

If someone makes round-headed rivets can you drill out the old ones and install new? The rivets can't be seen unless someone looks for them so normal pop rivets may work.

Delta Bay Mustang may have the fog light brackets; sometimes they do and sometimes they don't. Mike Jewell (somethingspecial) made GT/CS grilles in the past; he may have an extra.

If the car is an original GT/CS or GT it should have a large breaker next to the fuse box. If the car has that breaker it should be wired for fog lights, and there should be bullet connectors near the lights, unless someone rewired the car with the wrong harness.

If someone makes round-headed rivets can you drill out the old ones and install new? The rivets can't be seen unless someone looks for them so normal pop rivets may work.

Delta Bay Mustang may have the fog light brackets; sometimes they do and sometimes they don't. Mike Jewell (somethingspecial) made GT/CS grilles in the past; he may have an extra.

If the car is an original GT/CS or GT it should have a large breaker next to the fuse box. If the car has that breaker it should be wired for fog lights, and there should be bullet connectors near the lights, unless someone rewired the car with the wrong harness.

Attached is a drawing of the grill openings

Here is a photo of the fuse box and breaker. The fuse box is on the right, the breaker on the left.

It's difficult to see in this photo but the fog light wire is in the same general area as the horn wire. If you can trace the horn wire down to the opening in the core support you should see an extra wire.

The fog light connector is a 2 pin (male/female type) on the fog light, matching the car's harness (located near the horn wires on the left & right sides as Arlie stated).
The location of the stanchion mounting holes (on the wide grill molding) is described in the GT/CS owner's book.
Hope this helps.

Here are some pictures of some Lucas fog light the one with England on the glass is a correct assembly line light the other with foreign glass and large wire grommet is a latter replacement. I do not know what your goals for your car but if it is a driver the replacement would be far cheaper.
The one picture shows the wiring detail Neil was referring to.
I think You have assembly line lights that could be saved. Looks like the tubular nut was cut off. If you do not have the GTCS book I have a drawing I can email to you.
Marty

Great point, I should have checked the book. The grille section is really helpful and has a parts list AND the wiring is in there too. The other photos are great as well to demonstrate the differences and details. Thanks guys.

I'm not really sure of my goals for the car yet. I know I want to drive it often, maintain it properly, and assemble the missing correct parts (originals I hope). Once it's complete and healthy, then I can go through it and make decisions on what can be improved. I hope to give it the attention to detail that it deserves.

Maybe I can rebuild my lights scavenging Lucas parts and riveting the adjuster base back on, if I can find the hardware. Or I could just buy a complete set of originals if they pop up.

What would you recommend to cut out the grille holes? A cutoff wheel on a Dremel?

I am all over building the Lucas light kits for GT/CS and HCS cars. Eric you may only need the nuts and some minor hardware. Neil is sending me a nut to copy, and that may e all you need. But you need to remove what is left on you bolt form the light. that may need heat and a lot of lube to get it off. Or taking a small grinder cutting wheel to gently cut it off.